Sealmaster mounted ball bearings with double set screw locking are available in a wide variety of features:
7/8" - 4 15/16", Standard and medium duty series

Double set screw locking incorporates extended inner races on both sides of the ball path resulting in a total of 4 set screws (2 on each side) for better load distribution, resulting in greater holding power when operating at high speeds and when vibration may be present.